<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>500</title>
    <style>
        body {
            background-image: url("https://img.zcool.cn/community/0114c355e68f9932f875a132549a06.png@900w_1l_2o_100sh.jpg");
            background-size: cover;
        }
    </style>
</head>
<body>
</body>
</html>
